同等劑量的藥品采用不同的服用方式往往取得不同的效果,方案A是在每日三餐后服用,方案B是每日僅僅服用一次相同總劑量的藥品。對病情相似的20-44歲的患者進(jìn)行隨機(jī)抽樣,測試所服藥品在消化道中的中轉(zhuǎn)時(shí)間,選擇服用方案的順序是隨機(jī)的。下表給出了12名患者分別按方案A和方案B服用后,藥品在消化道中的中轉(zhuǎn)時(shí)間。
試求藥品中轉(zhuǎn)時(shí)間差異均值的點(diǎn)估計(jì)。您可能感興趣的試卷
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A cumulative frequency polygon is also called ().
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If the individual class frequency is divided by the total frequency, the result is the ().
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